GitLab CE/EE 16.7-18.9.7 Unauth Access to Private Debug Symbols
CVE-2026-3074 Published on May 14, 2026
Authorization Bypass Through User-Controlled Key in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to download private debugging symbols from inaccessible projects due to improper access control.
Vulnerability Analysis
CVE-2026-3074 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is an Insecure Direct Object Reference / IDOR Vulnerability?
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
CVE-2026-3074 has been classified to as an Insecure Direct Object Reference / IDOR vulnerability or weakness.
Products Associated with CVE-2026-3074
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Affected Versions
GitLab:- Version 16.7 and below 18.9.7 is affected.
- Version 18.10 and below 18.10.6 is affected.
- Version 18.11 and below 18.11.3 is affected.